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How to Install a Bathroom Sink


Instructions showing you how to install a bathroom sink vary according to the type of sink. This article will point you to the illustrated step-by-step techniques you need.

Installing a bathroom sink (also called lavatory or “lav”) can be a relatively easy do-it-yourself job if you have a few basic home improvement skills and tools.

Some types of sinks, such as pedestal sinks and console sinks are essentially just fastened to the wall or floor and then hooked-up to the plumbing. Other types require a bit of cabinetry or woodworking knowledge because you often have to mark and cut into the countertop.

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To Install a Bathroom Sink…

Below are the basic types of bathroom sinks; just click the links for specific step-by-step installation instructions.
How to Install a Bathroom Countertop Sink

install self rimming sink

Countertop Sink

A bathroom sink that has a lip which rises above the countertop is known as a self-rimming sink. Fortunately for do-it-yourselfers, installing a self-rimming, drop-in bathroom sink bowl is a relatively easy job.

How to Install an Under-Mount Sink
Recessed, or undermount, sinks are popular because they allow for easy clean-up of the adjacent surfaces and can be installed in practically any type of counter. The method of attachment varies by manufacturer; installation instructions are included with all models.

caulk edge of undermount bath sink bowl

Undermount Sink

How to Install an Above-Counter Sink
An above-counter lavatory is an excellent choice when you want to make a design statement. These stylish lavatories rise above the countertop to create a decorative focal point.

position countertop bath sink

Above-Counter Sink

How to Install a Pedestal Sink
Pedestal sinks are made up of two parts: the sink and the pedestal (or base).

how to install bathroom sinkKohler Co.

Pedestal Sink

With most, the weight of the bowl isn’t carried entirely by the base; a bracket ties the bowl to the wall for additional support.

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How to Install a Wall-Mounted Sink
Wall-mounted sinks are either hung on a metal bracket that is attached to the wall’s framing or bolted directly to the framing.

wall mounted bathroom sink

Wall-Mounted Sink

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Also see: How to Connect a Bathroom Sink Drain

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About Don Vandervort
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Don Vandervort has developed his expertise for more than 30 years, as Building Editor for Sunset Books, Senior Editor at Home Magazine, author of more than 30 home improvement books, and writer of countless magazine articles. He appeared for 3 seasons on HGTV’s “The Fix,” and served as MSN’s home expert for several years. Don founded HomeTips in 1996.

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